48 lines
1.2 KiB
Factor
48 lines
1.2 KiB
Factor
! Copyright (C) 2007 Daniel Ehrenberg
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! See http://factorcode.org/license.txt for BSD license.
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USING: namespaces make parser lexer kernel sequences words
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quotations math accessors ;
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IN: multiline
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<PRIVATE
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: next-line-text ( -- str )
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lexer get dup next-line line-text>> ;
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: (parse-here) ( -- )
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next-line-text [
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dup ";" =
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[ drop lexer get next-line ]
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[ % "\n" % (parse-here) ] if
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] [ ";" unexpected-eof ] if* ;
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PRIVATE>
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: parse-here ( -- str )
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[ (parse-here) ] "" make but-last
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lexer get next-line ;
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: STRING:
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CREATE-WORD
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parse-here 1quotation
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(( -- string )) define-inline ; parsing
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<PRIVATE
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: (parse-multiline-string) ( start-index end-text -- end-index )
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lexer get line-text>> [
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2dup start
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[ rot dupd [ swap subseq % ] 2dip length + ] [
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rot tail % "\n" % 0
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lexer get next-line swap (parse-multiline-string)
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] if*
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] [ nip unexpected-eof ] if* ;
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PRIVATE>
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: parse-multiline-string ( end-text -- str )
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[
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lexer get [ swap (parse-multiline-string) ] change-column drop
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] "" make rest ;
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: <"
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"\">" parse-multiline-string parsed ; parsing
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: /* "*/" parse-multiline-string drop ; parsing
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